Using LanguageⅡ全国优秀课堂实录

Unit 2. words and expressions

--- Cloning: where is it leading us? 崔

娜

Teaching goals教学目标

1. Target language 目标语言

•

exact

•

commercial •

straightforward •

complicated •

undertake •

in vain •

pay off •

breakthrough •

cast down •

differ •

object •

forbid •

altogether 2. Ability goals能力目标

Enable the students to describe cloning: 3. Learning ability goals 学能目标

Help the students learn how to describe cloning using the new words and expressions. Teaching important points 教学重点

How to describe cloning.

Teaching difficult points 教学难点

Help the students memorize the functions of the words and expressions. Teaching methods 教学方法

Presentation, explanation, and practice 4.Teaching procedures & ways教学过程与方式

STEP I：Lead in. 1.

present a short passage of cloning. •

Cloning is a way of making an exact copy of another animal or plant. •

It has two major uses, for commercial purpose, or for research. •

Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task to undertake. •

Scientists attempted to clone animals, but in vain. However their efforts were paid off in 1996. The cloning of Dolly the sheep is a breakthrough. But its short life made the scientists cast down.

•

With the technology developing, human can be cloned.

people's opinions differ, some are for it while others object. Altogether it is forbidden by the government. 2.

Pick out the key words to check their pronunciation. STEP 2: Explanation.

•

commercial •

straightforward •

complicated •

undertake •

in vain •

pay off •

breakthrough •

cast down •

differ •

object •

forbid •

altogether •

exact STEP 3: Practice 1.

multiple choice. 2.

Write from memory. 3.

Fill in the missing words of the passage cloning. Homework:

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write a short passage as you like, using the new words and expressions we just learnt. •

write a short passage about cloning, using the new words and expressions we just learned. •

about 100 words.